CN107338572B - Molding compound needle of a kind of two dimension negative poisson's ratio structure textile product and application thereof - Google Patents
Molding compound needle of a kind of two dimension negative poisson's ratio structure textile product and application thereof Download PDFInfo
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- CN107338572B CN107338572B CN201710398384.0A CN201710398384A CN107338572B CN 107338572 B CN107338572 B CN 107338572B CN 201710398384 A CN201710398384 A CN 201710398384A CN 107338572 B CN107338572 B CN 107338572B
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- needle
- negative poisson
- ratio
- heel
- compound
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
Abstract
The invention discloses a kind of molding compound needles of two-dimentional negative poisson's ratio structure textile product, the needle in needle heel is called in person and is fixedly arranged at including needle, the needle is bullet, and the needle heel is prismatic cylinder, the end surface cross sectional shape having the same of lower end section and the needle heel of the needle；The needle and the cross sectional shape of needle heel are negative poisson's ratio structure.The purposes of the patent is different according to molding structure and size, select the height and negative poisson's ratio shape of compound needle (calling in person including needle and needle), compound needle arranges to form needle group by certain array configuration, several pins group forms needle bed, the textile of big breadth can be processed, obtain the textile with Negative poisson's ratio.Its main feature is that simple, quick, high-precision, is suitable for the materials such as non-woven, composite material, foam, rubber, film, plastics, timber, metal, two-dimentional negative poisson's ratio structural material accordingly can be constructed by puncturing processing, and assign material Negative poisson's ratio.
Description
Technical field
The present invention relates to a kind of molding compound needles of two dimension negative poisson's ratio structure textile product and its processing to have negative poisson's ratio
The purposes of the textile material of effect.
Background technique
Nature has found a variety of substances with Negative poisson's ratio, it has been investigated that with Negative poisson's ratio
Material possesses the unexistent property of traditional material, and its shearing rigidity, fracture toughness, anti-pressure ability, synclastic curvature, energy
The traditional material of the ratios such as energy absorption capability, permeability all increases.These excellent mechanical properties make negative poisson's ratio material exist
There is potential application in the fields such as auto industry, physical protection, aerospace, biomedicine and national defence.Negative poisson's ratio structural wood at present
The research of material focuses mostly in foam and polymer material, and textile material report is less, though there is the relevant negative Poisson structure of two dimension
The braiding and knitted structure design method of textile material have preferable plane auxetic effect, but make cumbersome, production efficiency
Knitting equipment that is low, and needing to be specially modified, higher cost, it is difficult to meet wilderness demand in the market.
Summary of the invention
The purpose of the present invention is to provide a kind of molding compound needles of two-dimentional negative poisson's ratio structure textile product, can be convenient
The textile material etc. with two-dimentional Negative poisson's ratio is quickly made.
In order to achieve the above object, there is provided a kind of two-dimentional negative poisson's ratio structures to spin for a technical solution of the invention
The molding compound needle of fabric, which is characterized in that the needle that needle is called in person on one end is called in person and is fixedly arranged at including needle, what the needle and needle were called in person
Cross sectional shape is negative poisson's ratio structure.
Preferably, the needle is bullet, and the surface shape of bottom is negative poisson's ratio structure；The needle heel is cross-section
Cylinder, surface shape be negative poisson's ratio structure；The negative pool of surface shape size and the needle heel of the negative poisson's ratio structure of needle bottom
Pine is more identical than the surface shape size of structure.
Preferably, the negative poisson's ratio structure includes indent hexagon, herringbone, double-head arrow shape, indent honeycomb, star
Network, indent diamond shape, regular dodecahedron, triangle grid, center rotation rectangle, center rotary triangle shape, center rotation four sides
Body, chiral honeycomb, center polygonal, hinged hexagon, articulated quadrilateral, hinged triangle and combinations thereof.
There is provided a kind of application structures of above-mentioned compound needle for another technical solution of the invention, which is characterized in that
Above-mentioned compound needle is arranged to make up needle group by certain array configuration, and is fixedly arranged at needle bed by the other end of needle heel
On.
Preferably, the rib of shown compound needle has certain chamfering, to be arc-shaped, the needle is avoided to pass through material to be formed
When attacking material.
There is provided a kind of molding compound needles of two-dimentional negative poisson's ratio structure textile product for another technical solution of the invention
Application method, which comprises the following steps:
A) it according to the texture of the thickness of moulding material and surface Negative poisson's ratio, selects as described in claim 1 multiple
Close needle and the needle heel of needle, and the chamfering of corresponding selection needle and the cross sectional shape of needle heel, height and rib；
B) bottom of needle is corresponded to and is fixedly arranged in needle heel, form above-mentioned compound needle；According to textile molding structure and
Size is different, and a certain number of compound needles are lined up certain array configuration and form needle group, several pins group is formed more on needle bed
After meeting the requirements, the needle heel of compound needle used in the needle group is fixedly arranged in needle bed for big pattern and size；
C) compound needle on needle bed is penetrated into textile material using physical force, makes yarn, fiber around compound needle
Or composite material spreads or squeezes around according to the cross sectional shape of compound needle；
D) make needle heel through material to be formed, and stagnate appropriate time in material to be formed, in order to which material is formed surely
Fixed two-dimentional negative poisson's ratio structure；
E) needle bed is lifted by reversed physical force, compound needle is detached from material, and carry out next part pressing molding
Process；
F) solidify the textile material of two-dimentional negative poisson's ratio structure by setting process, gained textile material has negative Poisson
Than effect, the textile material with two-dimentional negative poisson's ratio structure effect is formed.
Preferably, it is processed for negative poisson's ratio structure, corresponding two-dimentional negative poisson's ratio knot can be constructed by puncturing processing
Structure material, and assign material Negative poisson's ratio.
Preferably, the two-dimentional negative poisson's ratio structural material is according to use direction and purposes, material property, surface two dimension
Negative poisson's ratio structure is different from size, material thickness is different, and manufactured auxetic textile material is used as function textile or people
Body safety device or common protective articles or medical supplies；Manufactured auxetic foamed material is packed for breakables；It is made
Auxetic foam, auxetic plastics be used as automobile cushion, backrest, bed and mattress；Manufactured auxetic rubber is used as mattress；It is made
High-performance auxetic plastics be used as deep ocean work, aviation and wide；Manufactured auxetic timber is used as construction material；It is manufactured
Auxetic metal is used as aviation and wide.
The invention reside in realize a kind of simple preparation method, high production efficiency, applied widely, production cost it is low two
The processing method for tieing up negative poisson's ratio material.The invention patent is by will have the needle of two-dimentional negative poisson's ratio shape and structure to wear completely
Two-dimentional negative poisson's ratio material (including fabric, non-woven, composite material, plastics, foam, film, rubber, timber, the gold in turbine face
Belong to etc.), to obtain two-dimentional negative poisson's ratio material.Two-dimentional negative poisson's ratio structure described in the invention patent includes six side of indent
The cellular topologies such as shape, herringbone, star, triangle, double-head arrow shape.The two-dimentional negative poisson's ratio material, according to using
Direction and purposes, material property, surface two dimension negative poisson's ratio structure is different from size, and material thickness is different, and manufactured auxetic is spun
Fabric material can be used as the function textiles such as buffering, bulletproof anti-puncturing, vibration damping, heat-insulated, filtering；Car belt, safety seat,
The human bodies safety device such as athletic protective clothes and equipment, racing car clothes, vibration-absorbing mitten, brain bucket；Children's garment, maternity dress, brassiere
Etc. common protective articles；The medical supplies such as spinal column internal fixation device, artificial forming valve, artificial blood vessel, stent in esophagus.Auxetic
Foamed material can be used for breakables packaging；Auxetic foam, auxetic plastics can be used as automobile cushion, backrest, bed and mattress
Deng；Auxetic rubber can be used as mattress；High-performance auxetic plastics can be used as deep ocean work, aviation and wide；Auxetic timber is available
Make construction material；Auxetic metal is used as aviation and wide etc..
Two dimension negative poisson's ratio shaping structures compound needle prepared by the present invention has the advantage that
(1) present invention can quickly generate two-dimentional Negative poisson's ratio material, and entire manufacturing process is simple and easy to operate, work
Skill is simple, low in cost, environmentally friendly, is applicable to large-scale serial production.
(2) present invention is applied widely, can apply on the materials such as fabric, foam, rubber, plastics, timber, metal,
Meet various applications of this kind of material in corresponding field.
(3) present invention is different with using purpose according to material property, using with varying cross-section structure and size, needle heel
The needle of length processes material for arrangement architecture and arrangement size on needle bed by changing, various structure shapes can be obtained
Shape, size, performance materials meet market various requirement.
Detailed description of the invention
Fig. 1 is interior hexagonal section needle, in which: 1A is front view, and 1B is normal axomometric drawing, and 1C is schematic perspective view；
1 is needle, and 2 call in person for needle.
Fig. 2 is " people " shaped sections needle, in which: 2A is front view, and 2B is normal axomometric drawing, and 2C is schematic perspective view；
1 is needle, and 2 call in person for needle.
Fig. 3 is double-head arrow tee section needle, in which: 3A is front view, and 3B is normal axomometric drawing, and 3C is schematic perspective view；
1 is needle, and 2 call in person for needle.
Fig. 4 is star cross section needle, in which: 4A is front view, and 4B is normal axomometric drawing, and 4C is schematic perspective view；1 is
Needle, 2 call in person for needle.
Fig. 5 is triangular-section needle, in which: 5A is front view, and 5B is normal axomometric drawing, and 5C is schematic perspective view；1
It calls in person for needle, 2 for needle.
Fig. 6 is that interior hexagon arranges needle construction schematic diagram, in which: 6A is left view, and 6B is front view, and 6C is normal axomometric drawing.
Fig. 7 is that " people " font arranges needle construction schematic diagram, in which: 7A is left view, and 7B is front view.
Fig. 8 is that double-head arrow shape arranges needle construction schematic diagram, in which: 8A is left view, and 8B is front view, and 8C is normal axomometric drawing.
Fig. 9 is that star arranges needle construction schematic diagram, in which: 9A is left view, and 9B is front view, and 9C is normal axomometric drawing.
Figure 10 is that triangle arranges needle construction schematic diagram, in which: 10A is left view, and 10B is front view, and 10C is isometric
Figure.
Figure 11 is interior hexagon negative poisson's ratio structural material schematic diagram, in which: 11A is front view, and 11B is three-dimensional signal
Figure.
Figure 12 is " people " font negative poisson's ratio structural material schematic diagram, in which: 12A is front view, and 12B is three-dimensional signal
Figure.
Figure 13 is double-head arrow shape negative poisson's ratio structural material schematic diagram, in which: 13A is front view, and 13B is three-dimensional signal
Figure.
Figure 14 is star negative poisson's ratio structural material schematic diagram, in which: 14A is front view, and 14B is stereoscopic schematic diagram.
Figure 15 is triangle negative poisson's ratio structural material schematic diagram, in which: 15A is front view, and 15B is stereoscopic schematic diagram.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, this field skill
Art personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims
Limited range.
A kind of two-dimentional molding compound needle group merging of negative poisson's ratio structure textile product provided by the invention is fixedly arranged on needle bed
Structural schematic diagram as shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, including needle 1, needle heel 2 and needle bed 3.In addition Fig. 1, Fig. 2, Fig. 3,
Fig. 4, Fig. 5 are the molding compound needle structural schematic diagrams of two-dimentional negative poisson's ratio structure textile product, their cross-sectional structure is respectively
Interior hexagon, " people " font, double-head arrow shape, star, triangle.Interior hexagonal and every group of needle of " people " font contain only a staight needle, needle knot
Structure includes needle 1 and needle heel 2；Every group of needle of double-head arrow shape and star includes 2 needles, is divided into a needle b needle, by increasing a needle and b needle
Number, and the needle bed needed for its arrangement obtains is adjusted, every needle construction is similarly needle 1 and needle heel 2；Every group of needle of triangle needle contains 7
Branch needle, respectively a, b, c, d, e, f, g, every needle construction include needle 1 and needle heel 2.
By increasing the group number of every kind of needle, adjusting the arrangement of needle, with the needle of auxetic effect shape required for obtaining
Bed, as shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, they be respectively in hexgonal structure needle beds, " herringbone " structure needle bed, double
Arrow-shaped structure needle bed, star structure needle bed and triangle needle bed.
Needle is penetrated into the materials such as fabric, composite material, foam, plastics, rubber, timber, metal by physical force
When, needle point adjacent material will squeeze diffusion around, and with penetrating for needle, material void shape becomes larger, when needle complete penetration material
When material, the upper and lower level of material will form the consistent shape of structure size, as shown in Figure 11, Figure 12, Figure 13, Figure 14, Figure 15.It
Be interior hexagon negative poisson's ratio structural material schematic diagram, " people " font negative poisson's ratio structural material schematic diagram, double-head arrow respectively
Shape negative poisson's ratio structural material schematic diagram, star negative poisson's ratio structural material schematic diagram, triangle negative poisson's ratio structural material show
It is intended to.
Specific implementation process of the present invention is as follows:
A) according to the texture of the thickness of moulding material and surface Negative poisson's ratio, needle 1 and the needle heel 2 of compound needle are selected,
And the chamfering of corresponding selection needle 1 and the cross sectional shape of needle heel 2, height and rib；
B) bottom of needle 1 is corresponded to and is fixedly arranged in needle heel 2, form compound needle；Molding structure and size according to textile
A certain number of compound needles are lined up certain array configuration and form needle group by difference, and several pins group forms bigger on needle bed 3
Pattern and size, after meeting the requirements, the needle of compound needle used in needle group heel 2 is fixedly arranged in needle bed 3；
C) compound needle on needle bed is penetrated into textile material using physical force, makes yarn, fiber around compound needle
Or composite material spreads or squeezes around according to the cross sectional shape of compound needle:
D) make needle heel through material to be formed, and stagnate appropriate time in material to be formed, in order to which material is formed surely
Fixed two-dimentional negative poisson's ratio structure；
E) needle bed is lifted by reversed physical force, compound needle is detached from material, and carry out next part pressing molding
Process；
F) solidify the textile material of two-dimentional negative poisson's ratio structure by setting process, gained textile material has negative Poisson
Compare effect.
The invention continuously penetrates textile material by the continuous output of textile material and needle bed, can be to big breadth or small
The textile of breadth carries out serialization processing, forms the textile material with two-dimentional negative poisson's ratio structure effect.
The surface of two dimension negative poisson's ratio material of the present invention has auxetic effect and squeezes the negative Poisson of two dimension of contracting effect
Than structure, the two-dimentional negative poisson's ratio structure includes indent hexagon, herringbone, star, triangle, double-head arrow shape, indent
Honeycomb, star network, indent diamond shape, regular dodecahedron, triangle grid, center rotate rectangle, center rotary triangle shape, center
Rotate tetrahedron, chiral honeycomb, center polygonal, hinged hexagon, articulated quadrilateral, hinged triangle and combinations thereof
Equal cellular topologies.
Two dimension negative poisson's ratio material of the present invention, according to the difference of application direction, the two-dimentional negative poisson's ratio invented
The performance of material, shape, thickness are different.Auxetic textile material can be used as buffering, bulletproof anti-puncturing, vibration damping, heat-insulated, mistake
The function textiles such as filter；Car belt, safety seat, athletic protective clothes and equipment, racing car clothes, vibration-absorbing mitten, shockproof head
The human bodies safety device such as helmet；The common protective articles such as children's garment, maternity dress, brassiere；Spinal column internal fixation device, artificial forming valve, people
The medical supplies such as hematopoiesis pipe, stent in esophagus；Auxetic foamed material can be used for breakables packaging；Auxetic foam, auxetic plastics
It can be used as automobile cushion, backrest, bed and mattress etc.；Auxetic rubber can be used as mattress；High-performance auxetic plastics can be used as deep-sea
Operation, aviation and wide；Auxetic timber can be used as construction material；Auxetic metal is used as aviation and wide etc..
Molding compound needle of a kind of two-dimentional negative poisson's ratio structure textile product of the present invention and application thereof, and in particular to
Following 5 embodiments, parameter are shown in Table.
Embodiment 1 has the anti-stab preparation for cutting clothes of indent hexagon negative poisson's ratio structure, and chinese raw materials is woven
The cross sectional shape of object, needle 1 and the needle heel 2 of compound needle is indent hexagon negative poisson's ratio structure, and needle 1 is 30mm long, the height of needle heel 2
Degree is 5mm；The inner chamfer of needle 1 and the rib of needle heel 2 is 0.5mm, outer chamfer 1mm；Needle calls in person sectional area as 45mm2, needle bed area
For 1000mm*1000mm；Sizing mode is resin solidification；
Embodiment 2 has the preparation of the rubber mattress of double-head arrow shape negative poisson's ratio structure, and chinese raw materials is rubber, multiple
The cross sectional shape of the needle 1 and needle heel 2 that close needle is double-head arrow negative poisson's ratio structure, and needle 1 is 50mm long, and the height of needle heel 2 is 8mm；Needle
1 and needle heel 2 rib inner chamfer be 0.5mm, outer chamfer 1.5mm；Needle calls in person sectional area as 700mm2, needle bed area is
1000mm*1000mm；Sizing mode is that room temperature is cold formed；
Embodiment 3 has the preparation of the medical filtering blood vessel of indent hexagon negative poisson's ratio structure, and chinese raw materials is poly-
The cross sectional shape of urethane film, needle 1 and the needle heel 2 of compound needle is indent hexagon negative poisson's ratio structure, 0.15mm long, the needle of needle 1
The height of heel 2 is 0.03mm；The inner chamfer of needle 1 and the rib of needle heel 2 is 0.005mm, outer chamfer 0.01mm；Needle heel sectional area
For 0.00125mm2, needle bed area is 200mm*200mm；Sizing mode is high temperature thermal finalization；
Embodiment 4 has the valvular preparation of star negative poisson's ratio structure, and chinese raw materials is that polytetrafluoroethylene (PTFE) is thin
The cross sectional shape of film, needle 1 and the needle heel 2 of compound needle is star-like negative poisson's ratio structure, and needle 1 is 1mm high, 2 high 0.3mm of needle heel；Needle 1
Being respectively as follows: a needle inner chamfer with the chamfering of the rib of needle heel 2 is 0.003mm, and a needle outer chamfer is that 0.0045, b needle chamfering is 0.006；
Needle calls in person sectional area as 0.04mm2, needle bed face area 200mm*200mm；Sizing mode is high temperature thermal finalization；
Embodiment 5 has the preparation of the brain bucket of triangle negative poisson's ratio structure, and chinese raw materials is the needle of compound needle
1 and needle heel 2 cross sectional shape be triangle negative poisson's ratio structure, needle 1 is 80mm high, needle call in person 2 high 20mm；The rib of needle 1 and needle heel 2
Chamfering be 1mm；Needle calls in person sectional area as 100mm2, needle bed face area 700mm*700mm；Sizing mode is that room temperature is cold formed.
Embodiment 6 has the preparation of the shellproof liner of triangle negative poisson's ratio structure, and chinese raw materials is the needle of compound needle
1 and needle heel 2 cross sectional shape be triangle negative poisson's ratio structure, needle 1 is 80mm high, needle call in person 2 high 20mm；The rib of needle 1 and needle heel 2
Chamfering be 1mm；Needle calls in person sectional area as 100mm2, needle bed face area 700mm*700mm；Sizing mode is that room temperature is cold formed.
The technological parameter tables of data of 1 embodiment of table
Claims (3)
1. a kind of application structure of compound needle, which is characterized in that compound needle includes needle heel (2) and is fixedly arranged on needle heel (2) one end
Needle (1), the needle (1) and needle heel (2) cross sectional shape be negative poisson's ratio structure, the needle (1) be bullet, bottom
Surface shape be negative poisson's ratio structure；The needle heel (2) is prismatic cylinder, and surface shape is negative poisson's ratio structure, needle
(2) are called in person through material to be formed, and stagnate appropriate time in material to be formed, in order to which material forms the negative pool of stable two dimension
Pine compares structure；The surface shape of the negative poisson's ratio structure of surface shape size and the needle heel (2) of the negative poisson's ratio structure of needle (1) bottom
Shape size is identical, and compound needle is arranged to make up needle group by certain array configuration, and by the other end of needle heel (2) consolidation
On needle bed (3), the rib of compound needle has certain chamfering, be it is arc-shaped, avoid the needle (1) from damaging when passing through material to be formed
Material.
2. a kind of application method of the molding compound needle of two dimension negative poisson's ratio structure textile product, which is characterized in that including following step
It is rapid:
A) according to the texture of the thickness of moulding material and surface Negative poisson's ratio, compound needle as described in claim 1 is selected
Needle (1) and needle heel (2), and corresponding selection needle (1) and needle are called in person the chamfering of the cross sectional shape of (2), height and rib；
B) the corresponding needle that is fixedly arranged in the bottom of needle (1) is called in person on (2), forms compound needle as described in claim 1；According to textile
Molding structure and size it is different, a certain number of compound needles are lined up into certain array configuration and form needle group, several pins group exists
Bigger pattern and size are formed on needle bed (3), and after meeting the requirements, the needle heel (2) of compound needle used in the needle group is fixedly arranged at needle
In bed (3)；
C) compound needle on needle bed is penetrated into textile material using physical force, makes yarn, fiber or multiple around compound needle
Condensation material spreads or squeezes around according to the cross sectional shape of compound needle；
D) make needle heel (2) through material to be formed, and stagnate appropriate time in material to be formed, in order to which material forms stabilization
Two-dimentional negative poisson's ratio structure；
E) needle bed (3) are lifted by reversed physical force, compound needle is detached from material, and carry out next part pressing molding work
Sequence；
F) solidify the textile material of two-dimentional negative poisson's ratio structure by setting process, gained textile material is imitated with negative poisson's ratio
It answers, forms the textile material with two-dimentional negative poisson's ratio structure effect.
3. a kind of application method according to claim 2, which is characterized in that processed for negative poisson's ratio structure, by wearing
Thorn processing can construct corresponding two-dimentional negative poisson's ratio structural material, and assign material Negative poisson's ratio.
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| CN201710398384.0A CN107338572B (en) | 2017-05-31 | 2017-05-31 | Molding compound needle of a kind of two dimension negative poisson's ratio structure textile product and application thereof |
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| CN201710398384.0A CN107338572B (en) | 2017-05-31 | 2017-05-31 | Molding compound needle of a kind of two dimension negative poisson's ratio structure textile product and application thereof |
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Cited By (1)
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| WO2021040716A1 (en) * | 2019-08-29 | 2021-03-04 | Safran Seats Usa Llc | Auxetic energy absorbing passenger safety assemblies |
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| CN107981957A (en) * | 2017-11-29 | 2018-05-04 | 夏热 | A kind of negative poisson's ratio chirality indent hexagon mixes cell element intravascular stent |
| CN108000758B (en) * | 2017-12-01 | 2019-11-08 | 东华大学 | A kind of negative poisson's ratio composite material for weaving molding die and method |
| US11504945B2 (en) * | 2018-05-09 | 2022-11-22 | Apple Inc. | Items formed using stitching equipment with adjustable-shape fixtures |
| CN108505528B (en) * | 2018-05-25 | 2024-01-23 | 山东大学 | Geogrid with auxetic effect and manufacturing method thereof |
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| CN110629375A (en) * | 2019-09-26 | 2019-12-31 | 江南大学 | Negative Poisson ratio fabric and preparation method thereof |
| CN112664601A (en) * | 2019-09-30 | 2021-04-16 | 河北工业大学 | Circular arc curve honeycomb core structure with negative Poisson ratio characteristic |
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| CN110866354B (en) * | 2019-11-08 | 2021-08-20 | 大连理工大学 | Optimized design method of polymer vascular stent structure considering scale effect |
| CN111529758B (en) * | 2020-06-24 | 2021-05-04 | 东华大学 | Negative poisson ratio structure myocardial patch with conductive stability and preparation method thereof |
| CN112045990B (en) * | 2020-09-10 | 2022-02-01 | 西安交通大学 | Chiral auxetic metamaterial structure with compression-shear coupling characteristic and preparation method thereof |
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| DE2222881A1 (en) * | 1972-05-10 | 1973-11-22 | Schmauser Herbert J | Forked needle - for patterning fibre fleece |
| CN2075662U (en) * | 1990-09-28 | 1991-04-24 | 周彬弟 | Embroidery needle for needling |
| JP4060932B2 (en) * | 1998-02-04 | 2008-03-12 | オルガン針株式会社 | Sewing needle and manufacturing method thereof |
| DE102005012906B3 (en) * | 2005-03-21 | 2006-12-14 | Corovin Gmbh | Sheet-like sheeting, method and apparatus for producing the same and its use |
| DE502009000460D1 (en) * | 2009-02-12 | 2011-04-28 | Groz Beckert Kg | Needle for a textile machine |
| CN103287025B (en) * | 2012-02-28 | 2015-12-02 | 香港纺织及成衣研发中心有限公司 | A kind of three-dimensional negative poisson ' s ratio knitted spaced fabric and preparation method thereof |
| CN103361886B (en) * | 2012-06-12 | 2015-09-09 | 香港理工大学 | A kind of fabric manufacture equipment of three-dimensional negative poisson ' s ratio fabric and method |
| WO2016094285A1 (en) * | 2014-12-10 | 2016-06-16 | Xu Luoyu Roy | Armor, shields and helmets with highly property-mismatched interface materials to reduce dynamic force and damage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021040716A1 (en) * | 2019-08-29 | 2021-03-04 | Safran Seats Usa Llc | Auxetic energy absorbing passenger safety assemblies |
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